CA2096522C - Interrupteur optique - Google Patents

Interrupteur optique

Info

Publication number
CA2096522C
CA2096522C CA002096522A CA2096522A CA2096522C CA 2096522 C CA2096522 C CA 2096522C CA 002096522 A CA002096522 A CA 002096522A CA 2096522 A CA2096522 A CA 2096522A CA 2096522 C CA2096522 C CA 2096522C
Authority
CA
Canada
Prior art keywords
optical
signal
interferometer
pulses
streams
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CA002096522A
Other languages
English (en)
Other versions
CA2096522A1 (fr
Inventor
Keith James Blow
Nicholas John Doran
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
British Telecommunications PLC
Original Assignee
British Telecommunications PLC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by British Telecommunications PLC filed Critical British Telecommunications PLC
Publication of CA2096522A1 publication Critical patent/CA2096522A1/fr
Application granted granted Critical
Publication of CA2096522C publication Critical patent/CA2096522C/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F3/00—Optical logic elements; Optical bistable devices
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/35—Non-linear optics
    • G02F1/3515—All-optical modulation, gating, switching, e.g. control of a light beam by another light beam
    • G02F1/3517—All-optical modulation, gating, switching, e.g. control of a light beam by another light beam using an interferometer
    • G02F1/3519—All-optical modulation, gating, switching, e.g. control of a light beam by another light beam using an interferometer of Sagnac type, i.e. nonlinear optical loop mirror [NOLM]

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Optical Modulation, Optical Deflection, Nonlinear Optics, Optical Demodulation, Optical Logic Elements (AREA)
  • Instruments For Measurement Of Length By Optical Means (AREA)

Abstract

L'invention est un commutateur optique constitué d'un interféromètre de Sagnac en boucle à fibres optiques (2) comportant un port d'entrée (10) et un port de sortie (12). Une source de signaux lumineux (26) d'une longueur d'onde de 1,53 µm est couplée au port d'entrée (10) et une source de signaux lumineux de commande (18, 20) de longueurs d'onde de 1,30 µm et 1,31 µm est couplée à l'interféromètre (2) par l'intermédiaire d'un coupleur dichroïque (8). Ce coupleur (8) divise le signal lumineux d'entrée de 1,53 µm en deux signaux se propageant en sens opposés dans la boucle (6) et force le signal de commande à se propager dans un sens seulement dans cette boucle (6). La différence de phase au port de sortie (12) entre les deux signaux résultant de la division dépend de l'intensité du signal lumineux de commande quand les signaux résultant de la division se recombinent au coupleur (8). Les signaux lumineux de commande sont obtenus en combinant au moins deux chaînes d'impulsions lumineuses sans interférences entre elles pour obtenir une porte logique ET.
CA002096522A 1990-11-27 1991-11-27 Interrupteur optique Expired - Fee Related CA2096522C (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB909025793A GB9025793D0 (en) 1990-11-27 1990-11-27 Optical interferometer
GB9025793.2 1990-11-27

Publications (2)

Publication Number Publication Date
CA2096522A1 CA2096522A1 (fr) 1992-05-28
CA2096522C true CA2096522C (fr) 1998-02-17

Family

ID=10686072

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002096522A Expired - Fee Related CA2096522C (fr) 1990-11-27 1991-11-27 Interrupteur optique

Country Status (7)

Country Link
US (1) US5473712A (fr)
EP (1) EP0559811B1 (fr)
JP (1) JP2989894B2 (fr)
CA (1) CA2096522C (fr)
DE (1) DE69129153T2 (fr)
GB (1) GB9025793D0 (fr)
WO (1) WO1992009916A1 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4238103A1 (de) * 1992-11-12 1994-05-19 Sel Alcatel Ag Optischer Schalter
WO1996028758A1 (fr) * 1995-03-15 1996-09-19 Philips Electronics N.V. Interrupteur optique
FR2758192B1 (fr) * 1997-01-06 1999-02-05 Alsthom Cge Alcatel Regenerateur de solitons a tres haut debit
GB9706370D0 (en) * 1997-03-27 1997-05-14 British Telecomm An optical memory
WO1998044512A1 (fr) * 1997-03-27 1998-10-08 British Telecommunications Public Limited Company Memoire optique
US5999292A (en) * 1998-02-20 1999-12-07 The United States Of America As Represented By The Secretary Of The Navy Sagnac interferometer amplitude modulator based demultiplexer
US5923797A (en) * 1998-03-12 1999-07-13 Lanhopper System, Inc. Frequency-controlled optical switch
US6778723B1 (en) 2000-11-09 2004-08-17 Sarnoff Corporation Integrated optical switch
US20030112484A1 (en) * 2001-12-03 2003-06-19 Dmitry Ponomarenko Optical multi-gate device and method
ITMI20041286A1 (it) * 2004-06-24 2004-09-24 Marconi Comm Spa Porte logiche ottiche ultraveloci riconfigurabili e rigenerative

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4280766A (en) * 1977-11-21 1981-07-28 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Optical gyroscope system
DE3522415A1 (de) * 1985-06-22 1987-01-02 Standard Elektrik Lorenz Ag Einrichtung zur messung der drehgeschwindigkeit
EP0393968A3 (fr) * 1989-04-19 1992-08-05 British Aerospace Public Limited Company Gyroscope à interféromètre à fibre optique du type résonateur
US5137357A (en) * 1990-06-27 1992-08-11 Honeywell Inc. Interferometric signal analysis with modulation switching

Also Published As

Publication number Publication date
DE69129153T2 (de) 1998-08-06
CA2096522A1 (fr) 1992-05-28
JP2989894B2 (ja) 1999-12-13
DE69129153D1 (de) 1998-04-30
EP0559811B1 (fr) 1998-03-25
US5473712A (en) 1995-12-05
EP0559811A1 (fr) 1993-09-15
WO1992009916A1 (fr) 1992-06-11
GB9025793D0 (en) 1991-01-09
JPH06507251A (ja) 1994-08-11

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